macdonald



I F. I'. IVIACDOIIIILDl nue on cI-IIMNEY CLEANING APPAn/Iws:

APPLICATION FILED MAR- I7, H319.

InentedSept. 9, 1919.

. 2 SHEETS'SHEET I.

5 Ivi/Dentu F. T. IVIACDONALD4 muli 0R CHrMNEY CLEANING APPARATUS,

APPLICATION FILED MAR. I7. |9191 Putendept. 9, 1919.

2 SHEETS--SHEET `2.

UNrrnn STATES PATENT orricn.

maux fr. mancante, orlsoi'rrn; rmronscor, MAINE.

man on entamer ennemies armeniens.

lTo all lwhom 'it may concern Beit known that I, FRANK T. MACDONALD,

a citizen of the United States, residing' at South Penobscot, in the county oi' Hancock and State oi Maine, have invented certain acter,whicl1 is adapted to clean square or cir cular fines or chimneys.

A further object of the invention is to pro vide apparatus'of the above mentioned charactor which is of. simple constructicm, and. is strong and durable.

Other objects and advantages of the invention will be apparent during the course of the following description. I I 11i-the accompanyingr drawings forming a part of this spccieation and in which like numerals are employed to designate like parts throughout the same:

Figure' l is a side elevation of apparatus embodying my invention;

Fig.v 2 iS an edge elevation of the same;

Fig. 3 isa horizontal sectional View, taken on the line3-3 of Fig. 1; Y

Fig. 4 is a vertical sectional view of they apparatus,` parts in elevation, showing the attachments for cleaning circular or curved chimneys or lines;

Fig. 5 is an edge elevation of the same; and.l l i Fig. 6 is a detail Section through the at At achment. i

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment ofmy invention7 the numeral 10 designates a substantially` vertical tubular body port-ion. This tubular body portion has a yoke 11, rigidly secured to its upper end. Pivoted to the yoke 1l., as shown at lil, are Vforked upper arms '13, including sides Pivotally connected with theV lower ends o1 the sifdes 14, as shown at 1,5,l are lower forked arms 16, including sides 17. The lower ends of the arms 16 have pivotal connection witha vertically movableslide 18, including; a tu bular portion 19, slidably engaging4 upontho tubular body portionl v 1 VSpeticecion of Lettere Iatcnt; appucgtiyn met Kamal?, 1919. serial No. 283,057.

Ichain 38 extends u Vthe sides, and positivelypreventing turning;l

Springs 20 have coiled portions carried by the pivots 12, and the outer ends ofthe springs contact with the npperarms 13, tend; in r to move them outwardly while the inner" enc s engage the tubular body portion 10, as

shown. y l

The numeral 21 designates an adjustable slide carried by the tubular body portion 10, and having pivotal .connection with dependmg links 22, as shown itt-23. The links are plvoted at their lower ends to the slide Patented Sept. 9, 1919;

18, as shown at 24. A compressible coil spring 25 surrounds the tubular body pon tion 10 and engages with and beneath the slide 21, the lower end of this spring contactingwith an adjustable stop element'QG, adapted to be vmoved longitudinally of the tubular body portion 10 andclamped in ad- ]ustmentthereto by means of a bolt 27. It

is thus seen that the spring 25 serves to raise the slide 21 and links 22, which in turn move the arme' 16 outwardly. The spring 9; therefore controls the transverse size or width of the apparatus, which may be varied by changing the 4tensioxrof the spring' causing it to move the slide 21 upwardly lfor a greater distance.

A flcxibleelement, such as a chain 28, ex

tends through the-tubular body portion 10 and is provided at its lower end with a largeA p loop 29, serving as a stop element. This large loop .has detachable connection with with a. ring; 33, termino; an 'upper stop, conj` nectcd with a cable 34 or the like. A viens that by raising'` and, lowering theca` ble, `the apparatus may be caused to rnove, 'v

upwardly or dmvnwardly Within the flue or chimney.

ln clcanmgi,r l tangular in cross section, and hasfflat` sides,

with lateral extensions 37, attached to the arms 14 and ll" by screws or bolts 38." These extensions 37 have flanges 39, contacting with movement ot the blades 35 with relation thereto. The cutting' edges 3b out these blades i pre ferably face downwardlyin the same dia flue or chimney, which is rec-4 rection whereby the scraping action occurs principally' upon the downward movement of the apparatus, auch downward inoven'ient being effected by the weight of the appara- `a swivel 30 by means ofabolt 31, the'swivelf," having; connection with a weight The`v pgffzitrdiy through vthe tll-` bular body portion 10 and has connectionA idly secured thereto, and these" armsl are ,ball

tus proper, or its combined weight witlithe When it is desired to clean a flue or chimney having a curved surface, curved blades 40 are arranged upon the opposite sidesof the apparatus, and preferably attached. to the blades '35 carried by thelower arms 16. These blades are-'curved longitudinally, as

indicated inl Fig. 5, andli'ave lower cutting edges 41. The blades 40 carry arms 42, rigbent to provide sockets 43, having lower undercut portions 44. These sockets are adapt- -edto receive Rthe lblades 35, which are held therein by a'1atch45, pivoted to the arins`42,

- as shown at 46. Asrclearly shown in Fig. 4,

the blades 40 extend outwardly beyond the blades 35 for a substantial distance, and

i 4 when the curved blades are employed, the

' main the same.

straightblades do not' function as scraping means. All/other parts of the apparatus reg The operation of the apparatus is as follows:

When the parts are arranged, as shown n Figs. 1 and, 2, the apparatus is lowered into the flue or chimney 4and the cable 34 is moved upwardly and'downwardly causing a reciprocatory` movement of the apparatus. The'springs hold the blades 35 in proper Y contact with the sidewalls of the flue, which scrape therefrom the soot or the like. The upward movement .of the apparatus is effected by thepull uponl the cable 34, while `its downward movement is eected by theA weight of the apparatus, or the combined weight of the same with the ball or element -of my invention or the scope of the sub- 32. As the chain 28 isslightly longer than the tubular body portion 34, it provides a flexible connection between the weight` 32 and the tubular body portion 10 .and should the apparatus stick on its downward movement, it may4 be freed by a hammering acjoined claims.

Having thus claim: i

1. In apparatus for cleaning a flue or chimney, ar body portion, a pair of upper described my invention, I

chimney, a body portion, a -pair of upper larms pivotally connected with the body portion, a pair of lower arms having pivotal connectionwith the upper arms, a slide car` ried by the bodyportion to move longitudinally thereof and pivotal connection with the lower arms, an adjustable slide carried by the body portion to move longitudinally thereof, connecting means between the two slides, a coil spring carried by the body portion and contacting with the adjustable slide, andan adjustable sto carried by the body portion to move longitudinally thereof and contacting with the spring to adjust the tension thereof.

3. In apparatus for cleaning a flue or chimney, a longitudinal tubular body portion, a slide carried thereby to move longi.- tudinally thereof, arms pivotally connected with the slide and having a flexible connection with the body portion, an adjustable slide carried by the body portion to move longitudinally thereof, connecting means between the two slides,a coil spring-surround ing the body portion and engaging the adjustable slide to move it in one direction, a flexible element longer than said body portion arranged within the body portion and capable of longitudinal movement therein, and stops connected to the end of said ilexible element.

4. In apparatus i for cleaning a flue or chimney, a longitudinal tubular body portion, cleaning apparatus carried by the tubular body portion, a 'llexible element extending through the tubular body portion and capable of longitudinal movement therein, stops connected with the flexible element and arranged above and below the same and spaced for a greater distance than thel length of the tubular body portion, andra weightconnected with the lower end ofl the flexible element.

' In testimony whereof I aflix my signature in presence of two witnesses.

FRANK T. MACDONALD. llVitnesses ALBERT P. Limon, Gnoncm S. Lenoir. 

